Greg Sands isn't perfect.

To name just a few of his imperfections: He had a serious fear of failure as a young athlete. He struggled to find his 'place' while a student at Harvard University. He doesn't particularly like following the rules. And there are times when he feels extremely insecure, like the first time he raised money for his venture capital firm - Costanoa.

Yet, in just over a decade, Costanoa has emerged as one of the most well respected and successful venture capital firms in the entire world. Early stage entrepreneurs flock to Costanoa eager to begin a life-long relationship with Greg and his amazing colleagues. And Greg has never been more happy - "I wake up each morning with a smile on my face eager to go to work," he beams.

Find out why in today's episode of Imperfect Leaders - part of the Breakfast Club at Harvard.